Moment modification factor of I-girder with trapezoidal-web-corrugations considering concentrated load height effects

Ngoc Duong Nguyen; Seung Ryong Han; Gyu Sei Lee; Young Jong Kang

doi:10.1016/j.jcsr.2011.05.002

Moment modification factor of I-girder with trapezoidal-web-corrugations considering concentrated load height effects

Ngoc Duong Nguyen, Seung Ryong Han, Gyu Sei Lee, Young Jong Kang

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

Moment modification factors of the I-girder with trapezoidal web corrugations subjected to concentrated load, applied at different heights on the cross section and various end restraint conditions, are investigated. The moment modification factors are obtained by finite element buckling analyses. The new FEM program is developed by using beam elements and new general formulas of cross-section properties as well as a new warping constant of the I-girder with trapezoidal web corrugations. The theoretical results of moment modification factors are compared with commercial finite element software (ABAQUS) using shell elements. A series of finite element analyses with different corrugation profiles and lengths is performed. Through comparative numerical studies, the theoretical results are successfully verified. The moment modification factors from the SSRC Guide are compared with present FEM results. The new values of the variable C_b, the moment modification factor, in the SSRC Guide are proposed as the variable C_b,c to improve the accuracy of lateral-torsional buckling strength.

Original language	English
Pages (from-to)	1773-1787
Number of pages	15
Journal	Journal of Constructional Steel Research
Volume	67
Issue number	11
DOIs	https://doi.org/10.1016/j.jcsr.2011.05.002
Publication status	Published - 2011 Nov

Bibliographical note

Funding Information:
This research was partially supported by a grant (code 07-Technology Innovation-A01) from Construction Technology Innovation Program funded by the Ministry of Construction & Transportation of Korean Government and partially supported by the Korea University Grant .

Keywords

End restraint conditions
I-girder
Load height effects
Moment modification factor
Trapezoidal web corrugations

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Mechanics of Materials
Metals and Alloys

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10.1016/j.jcsr.2011.05.002

Cite this

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title = "Moment modification factor of I-girder with trapezoidal-web-corrugations considering concentrated load height effects",

abstract = "Moment modification factors of the I-girder with trapezoidal web corrugations subjected to concentrated load, applied at different heights on the cross section and various end restraint conditions, are investigated. The moment modification factors are obtained by finite element buckling analyses. The new FEM program is developed by using beam elements and new general formulas of cross-section properties as well as a new warping constant of the I-girder with trapezoidal web corrugations. The theoretical results of moment modification factors are compared with commercial finite element software (ABAQUS) using shell elements. A series of finite element analyses with different corrugation profiles and lengths is performed. Through comparative numerical studies, the theoretical results are successfully verified. The moment modification factors from the SSRC Guide are compared with present FEM results. The new values of the variable Cb, the moment modification factor, in the SSRC Guide are proposed as the variable Cb,c to improve the accuracy of lateral-torsional buckling strength.",

keywords = "End restraint conditions, I-girder, Load height effects, Moment modification factor, Trapezoidal web corrugations",

author = "Nguyen, {Ngoc Duong} and Han, {Seung Ryong} and Lee, {Gyu Sei} and Kang, {Young Jong}",

note = "Funding Information: This research was partially supported by a grant (code 07-Technology Innovation-A01) from Construction Technology Innovation Program funded by the Ministry of Construction & Transportation of Korean Government and partially supported by the Korea University Grant . ",

year = "2011",

month = nov,

doi = "10.1016/j.jcsr.2011.05.002",

language = "English",

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AU - Nguyen, Ngoc Duong

AU - Han, Seung Ryong

AU - Lee, Gyu Sei

AU - Kang, Young Jong

N1 - Funding Information: This research was partially supported by a grant (code 07-Technology Innovation-A01) from Construction Technology Innovation Program funded by the Ministry of Construction & Transportation of Korean Government and partially supported by the Korea University Grant .

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Y1 - 2011/11

N2 - Moment modification factors of the I-girder with trapezoidal web corrugations subjected to concentrated load, applied at different heights on the cross section and various end restraint conditions, are investigated. The moment modification factors are obtained by finite element buckling analyses. The new FEM program is developed by using beam elements and new general formulas of cross-section properties as well as a new warping constant of the I-girder with trapezoidal web corrugations. The theoretical results of moment modification factors are compared with commercial finite element software (ABAQUS) using shell elements. A series of finite element analyses with different corrugation profiles and lengths is performed. Through comparative numerical studies, the theoretical results are successfully verified. The moment modification factors from the SSRC Guide are compared with present FEM results. The new values of the variable Cb, the moment modification factor, in the SSRC Guide are proposed as the variable Cb,c to improve the accuracy of lateral-torsional buckling strength.

AB - Moment modification factors of the I-girder with trapezoidal web corrugations subjected to concentrated load, applied at different heights on the cross section and various end restraint conditions, are investigated. The moment modification factors are obtained by finite element buckling analyses. The new FEM program is developed by using beam elements and new general formulas of cross-section properties as well as a new warping constant of the I-girder with trapezoidal web corrugations. The theoretical results of moment modification factors are compared with commercial finite element software (ABAQUS) using shell elements. A series of finite element analyses with different corrugation profiles and lengths is performed. Through comparative numerical studies, the theoretical results are successfully verified. The moment modification factors from the SSRC Guide are compared with present FEM results. The new values of the variable Cb, the moment modification factor, in the SSRC Guide are proposed as the variable Cb,c to improve the accuracy of lateral-torsional buckling strength.

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Moment modification factor of I-girder with trapezoidal-web-corrugations considering concentrated load height effects

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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